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SELECT 
  1 
FROM 
  q_lock_keys 
WHERE 
  key_id = '93e0f0a770f7695d8f14f8a0d57ad7e123661b8ba57e1ca2ae4179610fd83366' 
  AND token = 'LZzITiq1DmugcvpUkYfrITPDyFlSly3AG4EAYKeTBfk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00024

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}